catoptrics

名词 n.
中文释义

英文释义

名词 n.
  1. The branch of optics dealing with reflection. uncountable
    — 'tis ordinary to see strange uncouth sights by catoptrics; who knows not that if in a dark room the light be admitted at one only little hole, and a paper or glass put upon it, the sun shining will represent on the opposite wall all such objects as are illuminated by his rays?
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